Canon EOS Rebel T5i 18-55mm IS STM Lens Kit Instruction Manual - Page 128

3 Noise Reduction SettingsN 2 Set the setting. Select the desired setting, then press . X The setting screen closes and the menu will reappear. [Auto] For 1 sec. or longer exposures, noise reduction is performed automatically if noise typical of long exposures is detected. This [Auto] setting is effective in most cases. [Enable] Noise reduction is performed for all exposures of 1 sec. or longer. The [Enable] setting may be able to reduce noise that otherwise cannot be detected with the [Auto] setting. 3 Take the picture. The image will be recorded with noise reduction applied. With [Auto] and [Enable], the noise reduction process after the picture is taken may take the same amount of time as the exposure. You cannot take another picture until the noise reduction process is completed. Images taken at ISO 1600 or higher may look grainier with the [Enable] setting than with the [Disable] or [Auto] setting. With [Auto] and [Enable], if a long exposure is shot with the Live View image displayed, "BUSY" will be displayed during the noise reduction process. The Live View display will not reappear until the noise reduction is completed. (You cannot take another picture.) 128